Resistance in Peanut Foliage Influencing Fall Armyworm Control12

Larvae of Spodoptera frugiperda (J. E. Smith) were reared through 3 successive generations in the laboratory, confined to feed on foliage of resistant (non preferred) and on susceptible (preferred) cultivars of the peanut, Arachis hypogaea L. In addition to being nonpreferred in the field, the major effects of the resistant cultivar (‘Southeastern Runner 56–15’), compared with the susceptible cultivar, on larvae were a persistent reduction in adult emergence and an associated extension of the life cycle. The effects were cumulative through the generations. The data suggest that plant breeding to incorporate this resistance may assist in controlling populations of fall armyworms.